Muffler.



O. A. WILSON.

MUFFLER.

APPLICATION FILED AUG. 13, 1913 1,125,426. Patented Jan. 19, 1915.

wihl emea m 6% a appended claims.

. ing an inlet 2, and an outlet 3, the former being adapted forconnection with the eX-' UNITED sTATns PATENT OFFICE.

CHARLE -WILSON, OFWINCHESTER, ILLINOIS,

Specification of Letters Patent.

Patented Jan. 19, 1915.

l f Application'filed August 13, 1913., Serial No: 784,631.

noise inoident to the discharge of gases and modify or change thedischarge from intermittent explosive puifs to a practically constantand noiseless stream.

A further object of the inventionis to utilize the power generated inthe mufiier incident to the restriction of flow offered to thegases sothat the device of my invention can be employed to run or drive amagneto, cooling fan or other device required for operation, this lastfeature being pertinent to the use of the invention on an automobile.

A further object of the invention is to split or shred the gases andcause the same to take such a path as will 'serve..to impart rotarymovement to one or more rotors disposed in the muflier. a

Other features and objects of the invention will be more fullydescribedv in connection with the accompanying drawings and moreparticularly pointed out in and by the similar parts throughout thedifieren't fig;

ures of the drawing.

As illustrated, 1, designates a casing havhaust of an internalcombustion engine, and the latter being open to atmosphere. I

I The outlet end 4, of the casing 1, may be dome shaped and providedwith a journal ,bearing 5, for one end of a shaft 6. I preferablyconcave the endof the shaftgfi, and provide ahard oil cup 7, which isadapted to be threaded onto the bearing 5,, and which is provided withan axial'stud 8, having a roundedend 9, adapted to seat in theconcavedend of the shaft 6. A head 10, is provided to close the otherend of the casing 1, and the head 10., is providedwith inner and outerflanges 11 and 12, between which the wall-of the casing is secured byscrews 13. The casing may be lined with asbestosor like material asindicated at 14. Aspecial lining of like material is provided for thehead 10, The shaft 6,- is journaled in a bearing 16, in the head 10,andprojects therefrom for operative connection with any device which isto be driven thereby .Vhile I have referred to the utility of thisinvention as a driving means, I wish it understood that it is capable ofperforming its functions as a mufiler, without running wild,irrespective as to whether or not it is utili ed as a motor.

' Dispos d in the path of the gases from the inlet 2. to the outlet- 3.a e a plurality of alternatelv dis osed im eding elements. and

in the present construction. some of said elements are rotarv while theothers are stationaryxthe stationary elements in the presentconstruction also acting as reversingelefnents for the gases.

It is one ofthe features of mv invention to provide rotarv impedingelements which will graduallv. and preferablv con ecutively act toneutraliae the momentum of the gases bv pre enting relative eYtensi eareas thereto. so d s osed as to revolve the rotating els 7 ments sothat the drive tran m tted thereto the gases. will act to impede theflow of the gases with the least possible back pressure. As sl owm. Imount noon the shaft 6, three rotors 17. 18. and 19. of cone or funnelfo m with the larger ends farth st from the point 0? gas ingress and thesmaller ends nearest such point. Each rotor mav be provided with a hub.as indicatedat 20. 21, and 22. and set screws mavbe pro ided to lock"the rotors to the shaft 6. as clearly shown in'Fig. 1. It will be seenthat the gases entering at the inlet 2'. will be deflect d bvthe flaringor conicalrotor 17.. toward the pe ri herv oi the casing and in o der toprovide a relati elv extensi e driving area or the roto s. I dispo e onthe rotor 17. a pluralitv of blades which are inclined with re- The roto38. is pro ided with ester iorly disnosed lades 24. and the rotor 19. isprovided rwith exteriorlv dis os d blades 28,

and all of the rotors are of the same con-1101 struction and are similarin o eration Flirthe'rmore, the rotors are hollow wheels so} thatinterior chambers are provided therein, of Substantially ceutcur o theexteriors thereof. 1 e Y Prior to engagementof the gases with the blades23, of the first rotor 17 I dispose a stationary impeding elemen th may.b

in the form of a relatively narrow ring'26,

secured to the casing 1, by means such as screws 27, and provided withradially inwardly projecting blades" 28, which are disposedsubstantially longitudinally of the casing so as to split or'shred thegasesin their passage toward the blades 28.

The gases delivered from the blades 28, discharge and move toward animpeding element, which is stationary, and which also functions as areversing element. In the 1 present construction two of these stationaryimpeding elements is shown, thefir'st. of

which is designated as a whole at 29, and the second of which isdesignated at 30. 'Both of these; elements are similar in constructionand operation and only one need beide= scribed in detail.

The impeding element 29, is in the form of a ring having longitudinallyandradiallyextendin vergera iallv, outwardly from their great estcentral ring 21.

The passages between the biades 31, are

depth to the margins of the interrupted by an imperforate, flange orpartition 32, which'projeets radially inwardly from the blades. 23 sothat the gases dis 35,

charged from betweem the latter will be defiected or reversed down alongthe exterior of rotor 18', and into the interior of rotor ,17, therebycreating in such interior an eddy z-sever c5,

of such momentum as to cushion or bufiet and act to equalize thepressure of the gases to deaden the explosive pufilg discharge of thegases. a

As the greatest amount of heat, due to friction, will occur atthe pointof reversal of movement of the gases by the flange or rtition 32, agreater amount of carbon deposit will result and be collected in theintrior ofrotor 17. ,The gases act upon the blades of the wccessiverotors and are versed by the'impeding elements 291 and 30,

disposed alternately with respect to theretors, the gases dischargedfrom the blddes' 25', exhausting to atmosphere at the outlet 3. Arelatively greater-drive will be inia parted to the first rotor andthemomentum of the gases will be gradually used up andtransforaned intorotary motion so that a relatively lowdrive thrust; will be imparted thelast rotor 19, wherefrom the gases will pass to atmosphere in acontinuous but noiseless stream threu the outlet 3 ll thus-be seen thatwhile i gradually 'thexpassage of the gases, passing the I all elementaldo. not, because at the large surfiaee blades 31, which preferably 411-areas presented to the passing gases and the fa t that said surfaces aatively open and widely spaced. y

In the present construction where all of the rotors are locked to theshaft for the purpose of imparting, a rotary driving.

or speed of flow of the gases adjacent such rotor. In thisform, therotors would not act as driving elements andthe end rotor,

for instance. could'remain stationary if the prior impeding elementsneutralized the 1ntermittent pufiing discharge of the gases, or

it might rotate-providing thegases at the last rotor had suflicientmomentum to rotate the same. I j While I have herein shown and describedone specific form of my invention, I do not Wishto be limited theretoexcept for such limitations asthe claims may import. I claim? a 1. Amuffler comprising a casing for the passage of exhaust gasestherethrough, and a plurality of alternately disposed rotary and fixedgas impeding elements each having gas passages formed in the generalline of flow of the gas through the muffler re ,ceived and mountedwithin" said casing.

r 2 A mufller comprising a casing for the passage of exhaust gasestherethrough, gas impeding elements disposed in a fixed relja- 7 tion insaid casing, rotary. gas impeding elements mounted adjacent said fixedelementsand said elements provided with fluid pasis'ages arranged in thegeneral line at flow of the'gas through the rnufier.

2s A m-ufller comprising a casing for the passage of exhaust gasestherethrough, a

. lurali'ty of alternately disposed gas-impediiig devices. and each ofsaid devices pro vided with fluid passages formed in the genoral line ofpassage of the gases through the muflieradapted to reverse the path oftravel of the gas uponits abutment; with the immdin devices.

" 4. mufller comprising alternately disposed fixed and hollow rotary gasimpeding elements each provided with blades. the fixed elements beingprovided with partitions for reversing the flow of gas into'and formingeddies in saiidhollow rotary elements.

- L45, ompris v lg in combination, a

tating independentlyvof each other by hav wardly and blades for drivingengagement by the gases, the blades of the rotary elements being disposed between the said spaced elements. 1

6. A mufiier comprising in combination, a casing, a plurality of hollowrotors each having exterior blades inclined to their axis of K rotationfor engagement by the gases to revolve said rotors, and bladed elementsbetween said rctors for directing the gasesdischarged from said rotorsinto the hollow interior thereof to form eddies therein.

7. A mufiler comprising in ombination, a casing having an inlet and oulet for passage zogtherethrough of. the exhaust gases, a fixed elementhaving blades for shredding or splitting the gases,- a rotor having adiverging wall for directing the gases outwardly toward said element andprovided with blades in the rear of said element for driving engagementby the gases discharged from said element.

8. A mutller comprising in combination, a casing having an inlet and anoutlet for passage therethrough of the exhaust gases, a plurality ofrotors in the path of the gases provided with blades inclined to theiraxes of rotation for engagement withthe gases to be driven thereby, andfixed'bladed impeding elements between the first two and last tworotors.

- 9. A muflier comprising in combination, a

plurality of hollow rotors provided with circumferentially disposedblades adapted for successive engagement by the gases to be driventhereby, and fixed bladed and impeding elements in the rear of the firstrotor and in advance of the last rotors and reversing the direction ofand causing the gases to enter the hollow interior of the first and thenext to the last rotor.

10. A muflier comprising a casing for the passage of exhaust gasestherethrough, a'

plurality of impeding devices mounted at fixed points within saidcasing, a plurality of rotary impeding devices disposed between saidfixed impeding devices and each of said impeding devices 'havingtfluidpassages formed therein in the general line of flow of the gas throughthe mufiier and arranged to 'cause rotation of said rotary impedingdevices.

11.v A muflier comprising in combination, a casing for the passage ofexhaust gases therethrough, a plurality of fixed elements located withinthe casing around the wall thereof, a plurality of rotary elementsalternately positioned with respect to said fixed elements, each of saidfixed elements having fluid passages on the inner periphery thereof, aplurality of fluid passages provided on the outer periphery of each ofsaid rotary elements, and all of said passages arranged to lie in thegeneral line of passage of the gas through the muffler and so disposedthat the "rotary elements are caused to revolve and a forward andreverse whirling action is impa ted to the moving gas body.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES A. WILSON.

Witnesses

